advice

Ovulation Calculator

our ovulation calculator helps you work out when you're most likely to conceive a baby. simply tell us the date your last period began and how long your cycle lasts.

everyone's cycle is different, so our calculator uses averages to predict your most fertile days.

first day of your last period

length of your cycle:
x

your cycle is the number of days between starting one period and starting the next.

28 DAYS

<
>
20 30 40
Calculate

Your next fertile days are between

5th and 9th of October

Ovulating
Menstruating

Click here to find out more about getting pregnant